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1: Introduction Health and Safety Plan <br />subcontractors will provide BC with a copy of their own HASP for this project or other health and <br />safety program documents for review. <br />1.1 Site History and Description <br />The Site is an unimproved 6.3-acre parcel of land located immediately to the south of the Westway <br />Feed Products facility located at 2130 West Washington Street, Stockton, California. The Site and <br />the Westway facility are planned to be leased from the Port of Stockton by U.S. Biodiesel Group <br />(USBG) in partnership with BC's client REG, Inc. A recent Phase I Environmental Site Assessment <br />(ESA) performed for the Westway facility indicates that the Site has remained vacant, save for the <br />occasional loading and offloading of unknown products from two railway spurs that bisect the site. <br />The ESA noted that either the Site and/or the Westway facility formerly contained underground <br />storage tanks (UST's) filled with petroleum products, and USTs have been closed at adjacent <br />properties located to the north and southeast of the site. The ESA also mentioned that the southern <br />fence line bordering the Site was used as a miscellaneous storage area, which included the storage of <br />discarded equipment and containers. <br />A previous Phase II investigation of the Site conducted in 1991 did not detect elevated <br />concentrations of pH, hydrocarbons, BTEX, chloride and nitrate in the soil and groundwater <br />samples collected. This investigation did detect a magnetic anomaly within the site boundaries, <br />which was not further investigated. <br />Adjacent to the southeast boundary of the site is Koppel Stockton Terminal, which has been <br />undergoing routine groundwater monitoring for TKN, nitrate as nitrogen, ammonia as nitrogen, pH <br />and total dissolved solids. The Koppel groundwater monitoring program includes four monitoring <br />located on the USBG Site. <br />1.2 Scope of Work <br />Brown and Caldwell will be conducting a Phase II investigation for REG which includes: <br />Collection of groundwater samples from four monitoring wells. <br />Overseeing the advancement of 4 soil borings using a direct-push technology drill rig for the <br />collection of soil and grab groundwater samples; and collecting surface soil samples from 16 <br />other locations. <br />Observing a geophysical survey. <br />BROWN AsoCALDWELL <br />1-2